package top.minuy.subject.leetcode._206;
/**
 * @author Minuy
 * @time 21:49
 * @date 2021/8/26
 */
public class ListNode {
     int val;
      ListNode next;
      ListNode() {}
      ListNode(int val) { this.val = val; }
      ListNode(int val, ListNode next) { this.val = val; this.next = next; }
  }
